[U-Boot] [PATCH v2 4/5] x86: Init the debug UART if enabled

[Simon Glass]

If the debug UART is enabled, get it ready for use at the earliest possible
opportunity. This is not actually very early, but until we have a stack it
is difficult to make it work.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

Changes in v2:
- Remove comment block since we now always enable the debug UART
- Use a tab after the 'call' instruction

 arch/x86/cpu/start.S | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/arch/x86/cpu/start.S b/arch/x86/cpu/start.S
index d072825..5b4ee79 100644
--- a/arch/x86/cpu/start.S
+++ b/arch/x86/cpu/start.S
@@ -126,14 +126,9 @@ car_init_ret:
 	call	board_init_f_mem
 	mov	%eax, %esp
 
-	/*
-	 * Debug UART is available here although it may not be plumbed out
-	 * to pins depending on the board. To use it:
-	 *
-	 * call  debug_uart_init
-	 * mov   $'a', %eax
-	 * call  printch
-	 */
+#ifdef CONFIG_DEBUG_UART
+	call	debug_uart_init
+#endif
 
 	/* Get address of global_data */
 	mov	%fs:0, %edx
-- 
2.6.0.rc2.230.g3dd15c0